Special Note: Please note that this scenario is meant to be read as entertainment, not as an accurate prediction of the future. Also note that the viewpoints and opinions that may come across in this scenario are not necessarily the viewpoints and opinions of the author.
Before the cure for autism became affordable to a mass audience, legal guardians would help the mentally challenged do their financial work during times like income tax preparation and other major bank issues. As soon as people with autism could receive a permanent cure, they discovered that they could figure out all their banking and necessary finances without the need for a legal guardian to keep the person's finances going properly. This reality will come into being sometime between the years 2015 and 2025.
By the year 2030s, legal guardians will be only used for minor children so that they could enter children's contests (where generous prizes are rewarded, sometimes too generous for a child to accept on his or her own). Trips from this time period in contests geared towards children will include massive cash prizes, trips to Italy (and other foreign countries), celluar phones, and other expensive items intended for use by either children, pre-adolescents, and/or adolescents.